Keyboard



FIG. 1 is a reduced top front and right side perspective view of a keyboard showing my new design;

FIG. 2 is top plan view thereof;

FIG. 3 is a front elevational view thereof;

FIG. 4 is a rear elevational view thereof;

FIG. 5 is a right side elevational view thereof;

FIG. 6 is a left side elevational view thereof; and,

FIG. 7 is a bottom plan view thereof.

The keys are partially shown in the figures for ease of illustration and they are understood to continue uniformly across each of the indicated surfaces. 

The ornamental design for a keyboard, as shown and described. 